目的 针对当前奶粉金属包装微生物指标和检测方法没有相应国家标准规范的情况，提出标准化方案建议。方法 分析婴儿配方食品和食品接触材料或制品的微生物指标标准化的现状，基于现行《食品安全法》和食品安全国家标准的框架，从限量指标、采样方法和检测方法等3个方面探讨奶粉金属包装微生物限量要求标准化方案的可行性。结果 该标准化建议方案兼顾了内装物和包装材料的特性，经实验室初步验证测试表明，其在奶粉金属包装微生物指标检验上具有可操作性。结论 该方案在指标上符合金属包装特性，采样和检测方法参考了同类产品标准的规定，其整体可行性需要广大市场及相关部门进一步评估确认。

The work aims to propose a standardization proposal, in view of the fact that there are no corresponding national standards for the microbiological indexes and testing methods of metal package for milk powder at present. The present situation of the microbiological indexes standardization of infant formula and food contact materials or products was analyzed. Based on the framework of the current Food Safety Law and the national food safety standards, the feasibility of microbiological indexes standardization of metal package for milk powder was explored from such three aspects as limit indexes, sampling method and testing method. The standardization proposal took into account the characteristics of the interior and packaging materials, and was proved to be operational for the test of microbiological indexes of metal package for milk powder through the laboratory's preliminary verification test. The proposal meets the characteristics of metal package on the indexes, and the sampling and testing methods refer to the standards of similar products. The overall feasibility of the proposal needs further evaluation and confirmation by the vast market and relevant departments.